SCHEDULE 13D/A 0001409751 XXXXXXXX LIVE 12 Common Stock, $0.0001 par value per share 05/27/2025 false 0001261654 913915104 Universal Technical Institute, Inc.

4225 East Windrose Drive Suite 200 Phoenix AZ 85032

C. Shackelton/A. Gray 203-883-0100 105 Rowayton Avenue Rowayton CT 06853 0001409751 N Coliseum Capital Management, LLC b AF N DE 0 2716267 0 2716267 2716267 N 4.99 IA 0001409585 N Coliseum Capital, LLC b AF N DE 0 2251855 0 2251855 2251855 N 4.1 OO 0001356974 N Coliseum Capital Partners, L.P. b WC N DE 0 2251855 0 2251855 2251855 N 4.1 PN 0001454123 N Adam Gray b AF N X1 0 2716267 0 2716267 2716267 N 4.99 IN 0001430708 N Christopher Shackelton b AF N X1 0 2716267 0 2716267 2716267 N 4.99 IN Common Stock, $0.0001 par value per share Universal Technical Institute, Inc. 4225 East Windrose Drive Suite 200 Phoenix AZ 85032 This Amendment No. 12 (this "Amendment") to the Schedule 13D (the "Initial 13D") filed by the reporting persons identified on the cover pages hereto (the "Reporting Persons") with the U.S. Securities and Exchange Commission (the "SEC") on March 21, 2016, relating to shares of common stock, $0.0001 par value per share (the "Common Stock"), of Universal Technical Institute, Inc. (the "Issuer"), a corporation organized under the laws of Delaware, and as amended by Amendment No. 1 to the Initial 13D filed with the SEC on June 28, 2016, by Amendment No. 2 to the Initial 13D filed with the SEC on December 19, 2019, by Amendment No. 3 to the Initial 13D filed with the SEC on September 16, 2020, by Amendment No. 4 to the Initial 13D filed with the SEC on December 29, 2022, by Amendment No. 5 to the Initial 13D filed with the SEC on June 26, 2023, by Amendment No. 6 to the Initial 13D filed with the SEC on December 19, 2023, by Amendment No. 7 to the Initial 13D filed with the SEC on February 16, 2024, by Amendment No. 8 to the Initial 13D filed with the SEC on December 3, 2024, by Amendment No. 9 to the Initial 13D filed with the SEC on February 11, 2025, by Amendment No. 10 to the Initial 13D filed with the SEC on March 28, 2025 and by Amendment No. 11 to the Initial 13D filed with the SEC on May 14, 2025, amends and supplements the items set forth herein. The information relating to the beneficial ownership of the Common Stock by each of the Reporting Persons set forth in Rows 7 through 13 of the cover pages hereto is incorporated by reference herein. The percentages set forth in Row 13 for all cover pages filed herewith are calculated based upon 54,406,215 shares of Common Stock outstanding as of May 1, 2025, as reported in the Issuer's Quarterly Report on Form 10-Q filed with the SEC on May 8, 2025. The information relating to the beneficial ownership of the Common Stock by each of the Reporting Persons set forth in Rows 7 through 13 of the cover pages hereto is incorporated by reference herein. The Reporting Persons and a separate account investment advisory client of Coliseum Capital Management, LLC (the "Separate Account") effected the following transactions in the Common Stock on the dates indicated, and such transactions are the only transactions in the Common Stock by the Reporting Persons in the sixty days preceding the filing of this Amendment, or since the most recent filing of Schedule 13D by the Reporting Persons, whichever is less: on May 27, 2025, Coliseum Capital Partners, L.P. executed a block sale of 414,513 shares, and the Separate Account executed a block sale of 85,487 shares, each at a price of $35.00 per share. Except as set forth in Item 6 hereof, no person has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the Common Stock reported herein. As a result of the transaction described herein, on May 27, 2025, each of the Reporting Persons ceased to be the beneficial owner of more than five percent of the Common Stock. The filing of this Amendment represents the final amendment to the Initial 13D and constitutes an exit filing for the Reporting Persons. Coliseum Capital Management, LLC /s/ Chivonne Cassar 05/29/2025 Coliseum Capital, LLC /s/ Chivonne Cassar 05/29/2025 Coliseum Capital Partners, L.P. /s/ Chivonne Cassar 05/29/2025 Adam Gray /s/ Chivonne Cassar 05/29/2025 Christopher Shackelton /s/ Chivonne Cassar 05/29/2025